CN205980871U - Novel coarse coal hot -air heater of structure - Google Patents
Novel coarse coal hot -air heater of structure Download PDFInfo
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- CN205980871U CN205980871U CN201620893653.1U CN201620893653U CN205980871U CN 205980871 U CN205980871 U CN 205980871U CN 201620893653 U CN201620893653 U CN 201620893653U CN 205980871 U CN205980871 U CN 205980871U
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- air heater
- tube sheet
- coal hot
- bobbin carriage
- rough coal
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Abstract
The application discloses a novel coarse coal hot -air heater of structure, including first tub of case, first tube sheet, barrel, second tube sheet and the second pipe case that connects gradually, first tub of case on be provided with coarse coal gas export, be provided with coarse coal gas entry on the second pipe case, it has the heat exchange tube to gather in the barrel, the both ends of heat exchange tube are run through first tube sheet and second tube sheet to with first tub of case and second pipe case intercommunication, barrel top and bottom are provided with export of transform gas and transform gas entry respectively, just the export of transform gas is located respectively with transform gas entry is close to the position at barrel both ends, wherein: the barrel in still set up the baffling board for the transform gas that gets into from transform gas entry can flow from the export of transform gas with the S -shaped route, set up the mounting panel on the heat exchange tube, the heat exchange tube runs through the mounting panel is distributed by the mounting panel support. This application technical scheme has simple structure, long service life's advantage.
Description
Technical field
The application is related to heat exchanger apparatus, the rough coal hot-air heater of particularly a kind of new structure.
Background technology
In Modern Coal-based Chemical technology, the Preparation equipment of raw gas is always coal gas with the even running of raw gas conversion equipment
The emphasis of gasifying device and difficult point, the pipeline of conveying raw gas and the dust stratification of raw gas equipment, corrosion control are device long period fortune
The key of row.
In converting means energy saving technical reconstruction, in order to improve the device thermal efficiency, the high temperature shift after commonly used conversion
Gas carrys out the raw gas of self-gasifying device to heat, and increases bypass for adjusting heater outlet in raw gas inlet/outlet pipeline
Raw gas temperature, meets technological operation requirement.
Traditional heat exchanger is many to make tube side leave with rage using conversion, and rough coal makes shell side leave with rage, and this structure easily causes Tube Sheet of Heat Exchanger
Journey dust stratification, leads to heat exchanger efficiency to decline, heat exchanger tube local produces cryogenic vulcanization hydrogen-type corrosion, ultimately results in the unplanned parking of device
With heat exchanger premature failure.For example, Ba Ling petrochemical industry put into operation in 2010 transformation system energy saving technical reconstruction and increased rough coal
Hot-air heater E2115 just makes tube side leave with rage using conversion, and rough coal makes this structure of shell side leave with rage, equipment run more than 80 day after just as
Raw gas by-pass outlet threeway local corrosion is bored a hole and is stopped, and stopping, it is rotten to occur at same position again less than three months after repairing
Eating thrown hole.The heat exchanger tube of heat exchanger there is also a large amount of dust stratifications, and the heat exchanger tube after dust stratification is declined due to heat transfer property, also creates low
Warm and humid hydrogen sulfide corrosion, the heat exchanger tube after corrosion outlet causes heat exchanger short circuit, leads to the CO content overproof in conversion gas, impact
The safe and economical operation of follow up device.Meanwhile, the T-shaped threeway that raw gas homoiothermic bypass connection adopts, also easily produces gas
Body eddy flow, rotational flow gas are by causing local dust stratification during threeway, and local vulcanized hydrogen-type corrosion perforation occurs, and threeway service life is low
In equipment cycle of operation.
Content of the invention
The purpose of the present invention is to be improved for shortcoming present in background technology and problem and innovate, and provides a kind of knot
The rough coal hot-air heater that structure is simple, reliability is high.
The technical scheme is that the rough coal hot-air heater constructing a kind of new structure, including the first pipe being sequentially connected
Case, the first tube sheet, cylinder, the second tube sheet and the second bobbin carriage, the first described bobbin carriage are provided with raw gas and export, and described second
Raw gas entrance is provided with bobbin carriage, gather in described cylinder heat exchanger tube, and described first tube sheet is run through at the two ends of described heat exchanger tube
With the second tube sheet, and the first bobbin carriage is connected with the second bobbin carriage, described cylinder top and bottom are respectively arranged with conversion gas outlet
With conversion gas entrance, and described conversion gas outlet and conversion gas entrance respectively be located near described cylinder two ends position, wherein：
Deflection plate is also set up so that the conversion gas entering from conversion gas entrance can be exported from conversion gas with zigzag in described cylinder
Flow out, described heat exchanger tube arranges support plate, described heat exchanger tube runs through described support plate and supports distribution by support plate.
Wherein in an embodiment, described deflection plate and support plate are by be connected with the first tube sheet more than two
Pull bar is fixed in described cylinder, and in described pull bar is the distance sink tube with scale mark.
Wherein in an embodiment, described cylinder material is S32168.
Wherein in an embodiment, between the first described bobbin carriage and the first tube sheet, the second bobbin carriage and the second tube sheet it
Between be respectively provided with flat gasket.
Wherein in an embodiment, the first described bobbin carriage arranges the first drain, described second bobbin carriage is arranged
Discharging hole, described cylinder arranges the second drain.
Wherein in an embodiment, described cylinder body bottom arranges saddle.
Wherein in an embodiment, described rough coal hot-air heater also includes being arranged on the shunt valve of raw gas outlet
Line, described by-pass line is passed through Y-type three way type and is connected with raw gas outlet.
Wherein in an embodiment, described Y-type three way type is 45 degree of angle incisions, the strong protection of laid inside corrosion resistance
Layer.
Wherein in an embodiment, the setting of raw gas entrance can reduce the dedusting plate washer of gas dust content.
Wherein in an embodiment, described heat exchanger tube be arranged on the bottom certain distance of the first tube sheet and the second tube sheet with
On.
The advantage of technical scheme and having the beneficial effect that：
1st, change gas circulation flow process, allow clean conversion make heat exchanger shell pass leave with rage, the rough coal containing dust makes heat exchange leave with rage
Device tube side, is prevented effectively from dust deposit in cylinder it is difficult to clear up；
2nd, the raw gas entrance setting in heat exchanger can reduce the dedusting plate washer of gas dust content, so that gas is made in plate washer
With under, separate section dust is simultaneously deposited on exchanger head bottom；
3rd, heat exchanger tube is not installed in the certain limit of heat exchanger tube sheet bottom, properly increases gas flow rate, prevent in heat exchanger tube
Internal dust stratification；
4th, the threeway of raw gas bypass and heat exchanger exit rough coal gas pipeline is changed to y-type structure, can be substantially reduced cold and hot
Eddy flow after gas mixing, reduces the internal dust stratification of threeway；
5th, in the protective layer that threeway laid inside corrosion resistance is strong, the service life of threeway can be greatly improved.
Brief description
Fig. 1 is the sectional view of an embodiment.
Fig. 2 is A-A view in Fig. 1.
Specific embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing
Give the first-selected embodiment of the present invention.But, the present invention can realize in many different forms however it is not limited to this paper institute
The embodiment of description.On the contrary, provide the purpose of these embodiments be make more thoroughly comprehensive to the disclosure.
It should be noted that when element be considered as " setting " on another element, it can be direct arranges or even
It is connected on another element or may be simultaneously present centering elements.
Unless otherwise defined, the skill of the technical field of all of technology used herein and scientific terminology and the present invention
The implication that art personnel are generally understood that is identical.Term used in the description is intended merely to describe specific enforcement purpose, is not
Limit the present invention.
Embodiment 1
As shown in Figure 1, 2, the rough coal hot-air heater of a kind of new structure, including the first bobbin carriage 1 being sequentially connected, first pipe
Plate 2, cylinder 3, the second tube sheet 4 and the second bobbin carriage 5, the first described bobbin carriage 1 is provided with raw gas outlet 6, described second pipe
Raw gas entrance 7 is provided with case 5, setting in described cylinder 3 is densely covered with heat exchanger tube 8, and the two ends of described heat exchanger tube 8 run through described
First tube sheet 2 and the second tube sheet 4, and the first bobbin carriage 1 is connected with the second bobbin carriage 5, described cylinder 3 top and bottom are respectively provided with
There are conversion gas outlet 9 and conversion gas entrance 10, and described conversion gas outlet 9 and conversion gas entrance 10 are located at respectively near described cylinder
The position at body 3 two ends, wherein：
Described cylinder 3 material is S32168, also sets up some deflection plates 11, some deflection plates 11 in described cylinder 3
It is successively set between conversion gas entrance 10 and conversion gas outlet 9, cylinder 3 top half is sealed by a part of deflection plate 11, separately
A part cylinder 3 the latter half is sealed, and spaced so that from conversion gas entrance 10 enter conversion gas can be with S-shaped road
Line, from conversion gas outlet 9 outflow, also makes conversion gas be normal impact with the way of contact of heat exchanger tube 8, improves to greatest extent and change
The thermal efficiency.
Support plate 12 is arranged on described heat exchanger tube 8, described heat exchanger tube 8 runs through described support plate 12 and supported by support plate 12
Distribution, described in described deflection plate 11 and support plate 12 are fixed on by the pull bar 13 of is connected with the first tube sheet 2 more than two
In cylinder 3, one in described pull bar is distance sink tube 14 with scale mark so that the side of remaining between heat exchanger tube 8
To stable with spacing so that heater working stability.Because arrangement above is shell and tube, so using between bobbin carriage and tube sheet
Common flat gasket, structure is simple, convenient maintenance.
In the present embodiment, the first described bobbin carriage 1 arranges the first drain 15, setting row on described second bobbin carriage 5
Net mouth 16, described cylinder 3 arranges the second drain 17, is vented or drains in corresponding bobbin carriage and cylinder 3 after being respectively used to shut down
Remaining conversion gas or raw gas.
Described cylinder 3 bottom setting saddle 18, for installing heater.
Embodiment 2
Compared with Example 1, difference in this case is that described rough coal hot-air heater also includes being arranged on raw gas
The by-pass line of outlet 6, described by-pass line is passed through Y-type three way type and is connected with raw gas outlet 6；
In the present embodiment, described Y-type three way type is 45 degree of angle incisions, the strong protective layer of laid inside corrosion resistance, heap
Weldering Incone825 Langaloy, can be substantially reduced the eddy flow after cold and hot gas mixing, reduce the internal dust stratification of threeway, and corrosion resistant
The strong protective layer of corrosion, can greatly improve the service life of threeway.
More preferably, raw gas entrance 7 setting can reduce the dedusting plate washer of gas dust content, so that gas is acted in plate washer
Under, separate section dust is simultaneously deposited on exchanger head bottom.
Preferably, in described cylinder 3 a diameter of 1600mm, described heat exchanger tube 8 is arranged on the first tube sheet 2 and second pipe
More than the bottom 300mm of plate 4, properly increases gas flow rate, prevents dust stratification internal in heat exchanger tube.
General rough coal hot-air heater is that rough coal makes shell side leave with rage, and tube side is made in conversion leave with rage, and the dust exchange heat pipe in raw gas is straight
Connect washing away of formation, cause pipe wall of heat exchange pipe thinning appearance leakage, and the technical scheme of the application is to change raw gas from shell side
To tube side, it is to avoid disadvantages described above.Conventional heater is single tube journey movable tube sheets heat exchanger, and bulky needs to use Europe rice
Loud, high-pitched sound sealing structure, and the application is tubular heat exchanger, only needs common flat gasket, structure is simple, conveniently overhauls.
In addition, the change of cylinder material is also an important improvement, the application uses S32168, than conventional 15CrMoR+
0618Ni11Ti is more excellent.According to measuring and calculating, because of the improvement of structure and material, certain single equipment gross weight decreases 8750kg, heat-transfer surface
Amass and increase to 469.5 square metres by original 346.6 square metres, heat exchange area increased 35.4%, meanwhile, required conversion temperature
Degree is down to 320 DEG C from 475 DEG C, differs 155 DEG C, substantially increases equipment capacity.
Conventional T-shaped threeway generally uses more than 20 day and arises that corrosion failure phenomenon, and in oxygen in the threeway after improving
Change and reducing environment under all there is the antiacid and nickelic composition of alkali metal corrosive nature make alloy have effective stress corrosion resistant and open
Fragility.After improvement, Coal Chemical Industry converting means can achieve that long period safe operation reaches 30000 hours, has very great progress.
Embodiment of the present invention is only the description that the preferred embodiment of the present invention is carried out, not to the present invention
Spirit and scope are defined, and on the premise of without departing from design philosophy of the present invention, in this area, engineers and technicians are to this
Various modifications and improvement that bright technical scheme is made, all should fall into protection scope of the present invention, the skill that the present invention is claimed
Art content, has all recorded in detail in the claims.
Claims (10)
1. the rough coal hot-air heater of a kind of new structure, including the first bobbin carriage being sequentially connected, the first tube sheet, cylinder, second pipe
Plate and the second bobbin carriage, the first described bobbin carriage are provided with raw gas outlet, described second bobbin carriage are provided with raw gas entrance,
It is densely covered with heat exchanger tube, described first tube sheet and the second tube sheet are run through in the two ends of described heat exchanger tube in described cylinder, and by first pipe
Case is connected with the second bobbin carriage, and described cylinder top and bottom are respectively arranged with conversion gas outlet and conversion gas entrance, and described change
Ventilation outlet and conversion gas entrance are located at the position near described cylinder two ends respectively, wherein：Folding is also set up in described cylinder
Stream plate, so that the conversion gas entering from conversion gas entrance can export outflow with zigzag from conversion gas, described heat exchanger tube is arranged
Support plate, described heat exchanger tube runs through described support plate and supports distribution by support plate.
2. rough coal hot-air heater according to claim 1 it is characterised in that：Described deflection plate and support plate are by with
The pull bar of more than two of one tube sheet connection is fixed in described cylinder, and one in described pull bar is with scale mark
Distance sink tube.
3. rough coal hot-air heater according to claim 1 it is characterised in that：Described cylinder material is S32168.
4. rough coal hot-air heater according to claim 1 it is characterised in that：The first described bobbin carriage and the first tube sheet it
Between, be respectively provided with flat gasket between the second bobbin carriage and the second tube sheet.
5. rough coal hot-air heater according to claim 1 it is characterised in that：Setting first emptying on the first described bobbin carriage
Mouthful, described second bobbin carriage arranges discharging hole, described cylinder arranges the second drain.
6. rough coal hot-air heater according to claim 1 it is characterised in that：Described cylinder body bottom setting saddle.
7. rough coal hot-air heater according to claim 1 it is characterised in that：Described rough coal hot-air heater also includes arranging
In the by-pass line of raw gas outlet, described by-pass line is passed through Y-type three way type and is connected with raw gas outlet.
8. rough coal hot-air heater according to claim 7 it is characterised in that：Described Y-type three way type is 45 degree of angle incisions, interior
The strong protective layer of corrosion resistance is laid in portion.
9. rough coal hot-air heater according to claim 1 it is characterised in that：The setting of raw gas entrance can reduce gas and contain
The dedusting plate washer of dust quantity.
10. rough coal hot-air heater according to claim 1 it is characterised in that：Described heat exchanger tube be arranged on the first tube sheet and
More than the bottom certain distance of the second tube sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620893653.1U CN205980871U (en) | 2016-08-18 | 2016-08-18 | Novel coarse coal hot -air heater of structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620893653.1U CN205980871U (en) | 2016-08-18 | 2016-08-18 | Novel coarse coal hot -air heater of structure |
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| Publication Number | Publication Date |
|---|---|
| CN205980871U true CN205980871U (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620893653.1U Active CN205980871U (en) | 2016-08-18 | 2016-08-18 | Novel coarse coal hot -air heater of structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735340A (en) * | 2020-07-03 | 2020-10-02 | 中冶焦耐(大连)工程技术有限公司 | Novel gas preheater |
-
2016
- 2016-08-18 CN CN201620893653.1U patent/CN205980871U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735340A (en) * | 2020-07-03 | 2020-10-02 | 中冶焦耐(大连)工程技术有限公司 | Novel gas preheater |
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